Using separate cutting boards for raw meat and vegetables prevents cross-contamination, which can spread harmful bacteria from raw meat to food that won't be cooked, leading to foodborne illnesses.
Raw meat, poultry, and seafood can harbor bacteria like Salmonella, E. coli, and Campylobacter. These bacteria are killed when the meat is cooked to a safe internal temperature. However, if you use the same cutting board for raw meat and then use it for vegetables that will be eaten raw (like salad ingredients), you can transfer those harmful bacteria to the vegetables. This is called cross-contamination.
Washing the cutting board after cutting raw meat is helpful, but it's not always enough to completely eliminate all bacteria, especially if the board has scratches or grooves. Using separate cutting boards eliminates the risk of transferring these pathogens to foods that won't be cooked, significantly reducing the risk of food poisoning. Color-coded cutting boards are a great way to easily distinguish between boards for different food types.
Even with separate cutting boards, always wash them thoroughly with hot, soapy water after each use. Consider using a dishwasher for plastic cutting boards, as the high heat can help sanitize them more effectively.